>>I think the above is less readable than

>>IF NOT userHasNoDeletePermission()
>>  * Stuff to delete
>>ENDIF
>>RETURN llresult

PMFJI- I completely agree. Tests like that are a pet peeve and should be erradicated at all costs :)
>
>Perhaps rule #12 - No double negatives in test expressions.
>
>Looking through the VFP FFC's I just found this.
>

IF NOT tlNoShow
>    ** Do I do it or not?
>ENDIF
>
>** Much clearer
>
>IF tlNoShow && Don't do it
>   ** Stuff to do
>ENDIF
> -or-
>IF NOT tlShow && Don't do it
>   ** Stuff to do
>ENDIF

Hmm, applying English syntax rules.:-) Actually, in thinking about it I think my tendency is to name Boolean functions is such way that they're indicative of a successful result. (i.e. IF TableOpened(< filename >), etc.)